TOC analysis:

Definitions :
(As mentioned in the European Standards ISO/CEN prEN 1484-1997)
  • TC ( Total Carbon)
    The sum of organic bound and inorganically bound carbon present in water, including elemental carbon
  • TIC (Total Inorganic Carbon)
    The sum of carbon present in the water,consisting of elemental carbon,total carbon dioxide, carbon monoxide, cyanide, cyanate, and thiocyanate.
    ( TOC instruments mostly register as TIC only the CO2 originating from hydrogen carbonatess and carbonates.
  • TOC ( Total Organic Carbon)
    The sum of organic carbon present in the water, bonded to dissolved or suspended matter. Cyanate, elemental carbon and thiocyanate will also be measured.
  • DOC ( Dissolved Organic Carbon)
    The sum of organic carbon present in the water, originating from compounds which will pass a membrane filter of pore size of 0,45 micron. Cyanate, and thiocyanateare also measured.
  • VOC , POC ( Volatile Organic Carbon)
    Under the condition of this method purgeable organic carbon (POC)
  • NVOC , NPOC ( Non Volatile Organic Carbon)
    Under the condition of this method non-purgeable organic carbon (NPOC)
 
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